rivera



4 Sheets-Sheet 1.

Patented June 16, 1885.

,0 @www ...www3 www w02@ W o oooo S o Ik R MMVVMWO UNI wwww W Y m oooooo J ooooO N N R N 1 S/ C.. L( m,... N1 .w Y v Q B J w J'. M. RIVERA.

(No Model.)

i DYNAMC ELECTRIC MACHINE. No. 320,170.

WITNESSES (No Model.) 4 Sheets-Sheet 2.

' J. M. RIVERA.

DYNAMC ELECTRIC MACHINE. No. 320,170. Y Patented June 16, 1885.

O O O O O O 00 O00 ooooo oo IOO OOOO OO WITNES INVENTCE ym. BY

ATTORNEYS.

(No Model.) 4 Sheets-Sheet 3.

J. M. RIVERA. y

DYNAMC ELECTRIC MACHINE. No. 320,170. Y Patented June 16, 1885.

- WITNESSES: A X@ INVENTCE: q@ y CW@ BY ./(Lww ATTORNEYS.

(No Moael.) 4 sheets-sheet 4.

J. M. RIVERA.

DYNAMC ELECTRIC MACHINE. No. 320,170.` Patented June 16, 1885.

WITNESCE y INVENTCR:

l mi @mM/J lATTORNEYS.

UNrrnn STATES Pif-trani* narcis.

JOS M. RIVERA, OF BUGA, UNITED STATES OF COLOMBIA.

DYNAIVO-ELECTRIC MACHINE.

SPECIFICATION forming part of Letters Patent No. 320,170, dated June 16, 1885.

(No model.)

To all whom it may concern,.-

Be it known that I, Josi'; M. RIVERA, of Buga, United States of Colombia, South America, have invented a new and Improved Dynamo-Electric Machine, of which the following is a full, clear, and exact description.

The object of my invention is to provide certain new and useful improvements in dynamoelectric machines, whereby the armature of the same can be rotated without the use of belts or gear-wheels, and a greater or less number of machines can be coupled on one shaft or uncoupled from the same, as may be neces` sary.

A further object of my invention is to facili.- t-ate the winding of the armature, and to improve the general construction of the same.

The invention consists in the peculiar construction and arrangement of parts, as hereinafter fully described, and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure l is a sectional plan view of my improved dynamo-electric machine. Fig. 2 is a cross-sectionalelevation of the same on the line x 00, Fig. l. Fig. 3-is an end elevation of the same. Fig. 4 is a cross-sectional elevation of the tubular armature-shaft, and a side view of the spider-wheel on the same. Fig. 5 is a side view of two of the quadrant-sections used in forming the armature-frame. Fig. 6 is a plan view of a series of sections for forming the armature-frame. Fig. 7 is a longitudinal sectional elevation of an armature-frame of a modified construction.

On the driving-shaft A, which is operated by some suitable motor, a tubular shaft, B, is loosely mounted, which shaft is provided with an enlargement, B', forming an oil-chamber for lubricating the sleeve or tubular shaft B on the shaft A.

At or near the middle of the tubular shaft or sleeve B a spider wheel, C, is rigidly mounted on the same, which is preferably provided with four arms, and at 'the end of each arm with a wedge-shaped lug, C', having a transverse central aperture, a. The ends of the arms of spider C are united by an annular rim, C2, provided with a series of radial apertures, e, for a purpose which will be described hereinafter.

The armature-frame is composed of a series of quadrant-pieces D, constructed at the ends with large wedge-shaped pieces D of the same size as thewedge-shaped lugs C. At the ends of the arms of the spider C and between the end wedge-shaped pieces D the quadrant pieces D are provided with a series of smaller radial wedges, D2, between which the coils of wire are to be wound. The cylindrical armatureframe consists of four quarter-cylinders, each composed of a series of quadrants, D, held to each other by long rivets E, passed transversely through the several quadrants D between the wedges D2. The ends of the quadrants do not abut against each 0ther,but overlap each other, so that the alternate wedge-shaped pieces D of the alternate quadrants D overlap each other. Each wedge D at the end of the quadrants D is provided with an aperture, d, and when the armature-frame is completed the apertures d of the several wedge-shaped pieces D will coincide with the apertures a ofthe wedge-shaped lugs C on the spider-wheel, and long bolts F can be driven through wedge-shaped pieces O', and the several wedge-shaped pieces D and the nuts on the said bolts can be drawn up tight, whereby the several wedge-shaped pieces D will be pressed firmly together and will all beheld in place on the ends of the arms of the spider-wheel.

The edges of the quarter-cylinders forming the armature-frame will be toothed-that is, the alternate wedge-shaped pieces D will project beyond the longitudinal edges of the quarter-cylinders, and when the two corresponding quarter-cylinders are placed together the projections on the longitudinal edge of one quarter-cylinder will pass into corresponding recesses in the edge of the otherthat is, the wedge-shaped pieces D will interlock in the same manner that the bricks of brick-work interlock.

The quadrants D are united by the long rivets E; but the armature-frame is held on the spider-frame O by four bolts, F, which pass through the wider or thicker part formed in the armature-frame by the wedge-shaped pieces D', and also pass through the lugs C of the spider-wheel. The wedges I)2 form longitudinal grooves in the inner and outer cylindrical surfaces of the arn'iature-frame, and in the said grooves a wire, G, forming the armature-coils, is wound.

The heads H of the held-magnets J are provided with wings II,whieh overlap the inner or under side of the armature, between the ends of which wings an annular slot is formed, through which the arms of the spider-wheel C can pass. The armature thus revolves in a tubular space between the heads II and their wings IAI, and thus all sides of the armature will be surrounded by iron. The armaturecoil can be wound as one continual coil over the entire length of the armature-frame, or can be constructed with two independent coils, G', which are wound on opposite sides of the spider-frame C. Each half of the armature will then be formed of a series of coils, G, of half the length of the armature-frame, as in Fig. 7..

On the tubular shaft B the commutator K is rigidly mounted, which consists of a series of wedge-shaped metal blocks, L, held on an insulating-sleeve, L', which blocks L are insu.- lated from each other. The connections of the armature-coils are as follows: The inner end of one coil is connected with the outer end of the adjoining coil, andthe two united wires are then connected by a wire, Lr/,with one section, L, of the commutator, the said wire r/ passing through apertures c in the ring C2, uniting the ends of the arms of the spiderframc. j

The brushes M, resting against the circular surface of the commutator K, are secured to brush-holders N, adapt-ed to slide on insulated segmental plates O, held on the ends of the held-magnet heads, which brush-holders can be locked on the plates O by means of bindingscrews O', and thus can be adjusted in the desired position.

On the end of the tubular shaft B a frictioncoupling disk, I?, is rigidly mounted, which has its outer surface provided with a series of grooves, and a like friction-coupling disk, Q, also provided with grooves, is held to slide on the main driving-shaft A, and is turned or revolved with the said shaft A by a feather or spline, Q, on the said shaft.

The friction-clutch disk Q is provided with a grooved collar, It, into which the forked end of a pivoted lever, S, passes, in which fork the collar can revolve. By means of the said lever S the grooved surface of the clutch-disk Q can be pressed against the grooved surface of the clutch-disk I in such a manner that the two clutch-disks engage with each other, and the rotating disk Q will rotate the disk P and the tubular shaft or sleeve on which the disk P is rigidly mounted, and thereby the spiderwheel C and the armature held on the same will also be revolved.

If at any time the movement of the machine is to be stopped, it is only necessary to disengage the clutch-disks P and Q, and if the machine is to be operated, all that is necessary is to engage the said disks. Thus a number of armatures of machines can be mounted on the shaft A, and any one armature can be coupled to the shaft Aby means of the above-described mechanism. One or all of the machines can oe operated at will, or can be stopped,so that the quantity of electricity produced can be easily regulated according to the demand.

I call especial attention to the fact that no belts or pulleys are required, and that the mechanism for coupling the machine to the driving-shaft A is very simple and compact, and occupies but very little space.

In order to supply a quantity of fresh air to the armature to prevent the same from being heated, I have provided the wings H', which overlap the under side or inner surface of the cylindrical armature with a series of slots T, through which the air passes to the armature.

The above-described ina-chine can be used as a motor or as an electric generator. The sections forming the armature can be separately detached from each other,thus facilitating the winding of the armature and the replacing of the same. As the spider-wheel carrying the armature-frame is placed in the middle of the same, the rotating parts will be well balanced and will move easily.

Another great advantage of my improved machine is that the wires of the armature are fully protected, and thus are not apt to be injured or covered with dirt or dust.

If two sets of bobbins or coils in the armature are used, one on each side of the spiderwheel, one set can be wound with coarse wire and the other with ne wire entirely independent of each other, so that one set of coils can be used for tension and the other for quantity, in which ease the machine would have to be provided with several commutators. As there are to be several machines mounted on the main driving-shaft, some of the machines might be used as motors and the others as current-generators. Vhen there are two separate sets of bobbins on one armature-frame, one set might be used as a motor and the other set might be used as a generator of currentthat is, the magnetic field which serves-for the motor will be utilized for the generator.

Any machine can be removed from the driving-shaft very easily, and can be replaced by a more or less powerful machine, according as a greater or less number of lights is desired.

I have shown and described the armatureframe constructed of quadrant-pieces, but, if desired, the pieces can be fifths, sixths, or eighths of circles.

Having thus described my invention, I claim as new and desire to secure by Letters Patentl. In a dynamo-electric machine, the combination, with' an armature, of the spiderwheel to which the center of the armature is fastened, a tubular shaft on which the spiderwheel is rigidly mounted, a driving-shaft passing loosely through the tubular shaft, and a ICO IIO

clutch for locking the tubular shaft on the driving-shaft, substantially as herein shown and described, and for the purpose set forth.

2. In a dynamo-electric machine, the combination, With an armature, of a spider-Wheel to which the middle of the armature is at tached, a tubular shaft on which the spiderwheel is rigidly mounted, which tubular shaft is provided with an enlargement forming an oil-chamber, a driving-shaft passing loosely through the tubular shaft, and devices for locking the tubular shaft on the driving-shaft, substantially as herein shown and described, and for the purpose set forth.

3. In a dynamo-electric machine, the combination, with the armature, o-f the spider Wheel G, attached to the middle of the arma* ture, the tubular shaft B, the driving-shaft A,

the clutch-disk P, mounted on the shaft B, the i sliding clutch-disk Q, mounted to turn with and slide on the shaft A, and of devices for pressing the disk Q against the disk P, substantially as herein shown and described, and for the purpose set forth.

4. In a dynamo-electric machine, the combination, With the armature, of a fieldmagnet, J, provided With Wings IVI, forming a tubular space in -Which the armature can revolve, which wings H are provided with slots or openings T, for admitting air to the armature for preventing overheating of the same, substantially as herein shown and described, and for the purpose set forth.

5. An armature fora dynamo-electric machine, constructed of a series of quadrantpieces, D, having overlapping wedge-shaped pieces D at the ends, the rivets E, uniting the several quadrant-sections D, and the bolts F, passed through the apertures d in the said overlapping Wedges D', substantially as herein shown and described, and for the purpose set forth.

Jos M. RIVERA. Witnesses:

OscAR F. GUNZ, C. SEDGWICK. 

